PACIFY :

The correct answer is C. Calm.

To pacify is to make someone or something calm or less angry.

A. Gather means to bring people or things together.
B. Allot means to give or share something out.
D. Remit means to send or give something back.

Here are some examples of how to use the word “pacify”:

• The police tried to pacify the angry crowd.
• The doctor gave the patient a sedative to pacify her.
• The teacher tried to pacify the unruly students.

I hope this helps!